# How do you evaluate 9.7 + 3.1w - 1.9 for w = 2.3?

Jun 6, 2018

$14.93$

#### Explanation:

Simply substitute $2.3$ wherever there is a $w$ in the expression

$9.7 + 3.1 w - 1.9$

$= 9.7 + 3.1 \left(2.3\right) - 1.9$

$= 9.7 + 7.13 - 1.9$

$= 14.93$